hubbard



E. O. HUBBARD.

HAMMER.

APPLICATION FILED JAN.29, 1912.

1,045,145. I Patnted}N0v.26,1912.

Y A r '(h'.. -4" I T I no 'Y A' y I annual,

UNITED "STATES :anche o. HUBBARD,

E LEDA, VIRGINIA.

HAMMER.

Specification of Letters Patent. PatentedNoV, 26, 1912,

Application led vJanuary 29, 1912. Serial No. '$74,126.

' 'o al'iwz-om 'if may concern.' I

De it known that I, EDGAR O. HUBBARD,

l citizen of the United' States, residing at Leda, in the county of Halifax and State of Virginia, have invented certain newand useful Improvements in Hammers, of which the following is a specification.

This vinvention relates to hammers,- and more particularly to a hammer having a cushioned head.

It is one aim of the invention to provide a hammer having a head which is so cushioned that the shock of impact of the head with a, nail or the like, being driven, will be to a great extent absorbed and will not be imparted to the hand ofthe person using the hammer.

The invention also' aims to provide a hammer having a head so cushioned that by the use of the hammer a nail, or the like, may

be more readily driven and with fewer blows than by the use ot the ordinary hammer, the head of which is solid.

A further object is to provide a hammer of the type mentioned in which the cushioning elem-ent may be readily removed at any time and replaced should it become so worn or compressed as'torender the device in* efficient. f

a slight modification of the invention.

Also, the invention contemplates the provision of a hammer in which the head proper may be replaced at any time, should it become chipped orworn away without the necessity of replacing the entire cushioning device. v

For a full understanding of the invention reference is to be had to the following de* scription and accompanying drawing, in which:`

Figure 1 is a side elevation of a hammer constructed in accordance with the present invention. Fig. 2 is a fragmentary view partly-in side elevation and partly in longitudinal section showing the construction .of the hammer head and the cushioning device. Fig. 3 is a vertical transverse sectional view on the line 3 3 of Fig. 2. Fig. 4 is a view similar to Fig. 2 but illustraing 11g. 5 is a similar view illustrating a further modification. Fig. 6 is a group perspective view illustrating the elements of the cushioning device about'to be assembled.

Corresponding and like parts are referred to in the following description and indicated ".v in allthe views of the accompanying drawing by the same reference characters.

In the draw-ing, the numeral 1 indicates the head of the hammer which is litted at the end of the usual handle 2 and this head l maybe provided with the usual claws 3 or may be of any 'other well-known type. The head is formed with a reduced threaded portion 4 onto which is threadedV one end of a sleeve 5 in which the cushioning device ofthe present'invention is .housed The portion 4 at its. end is flat and serves as a seat for the cushion as will be presently explained. The sleeve 5 near its outer end, is reduced as at 6to form an inwardly presented annular shoulder 7 and beyond its reduced portion is formed with a concave seat 8. In order that the sleeve 'may be readily unscrewed from the portion 4 of the head l `it is flattened upon opposite sides as indicated at 9, it being understood that the jaws of. a wrench may be engaged with these sides 9 for the purpose stated.

The head proper of the hammer is indicated in Figs. 2, 5 and 6 of the drawing by the numeral 10 and has. a iiat driving face 11 and a squared portion 12 with which may be engaged a wrench for a purpose to be presently explained. The rear side of.

the head is substantially semifcylindrical as shownin the said figures and is only partly received within the concavity 8 of the outer end of the-sleeve 5. The head 10 is formed Acentrally with a threaded stud 13 which is removably threaded into a socket 14 formed in the neck 15 of a retaining head 16. As illustrated in Figs. 3 and 6 of the drawing the sleeve 5 is formed interiorly inwardly of the shoulder 7 with flattened wall portions 17 lying in parallel planes and the re-taining head 16 is flattened upon opposite sides 'as at 18 and is fitted slidably between the said wall portions 17 and is, as will be readily understood held against rotation, within the sleeve, by reason of the engagements of its. flattened sides against the said `wall portions.

A cushion in the form of a circular block 19 of rubber-or other 'suitable cushioning material is arranged within the sleeve 5 and rests at one side a ainst the flat outer 'end of the reduced portion 4 of the head l and at to yieldably resist the inward sliding movement of the retaining head in the sleeve 5, as will be apparent from inspection of Fig.

2 of the drawing. At this point it will be ioI apparent that when a blow is struck with the .hammer the head proper, indicated by the numeral 10, will be momentarily` forced inwardly, thereby oompressingt-he cushionV `head in the manner illustrated inr Figsr. 2, t

a d -5. v-

/nIt will be a parent rominspect-ionof Figs; 2 ,and 5 o the draw'ing that should an\ exceptionally har'd blow be struck with `the` Ahammer or should the head-proper, 10, strike unevenly, the convex rear side 'of the said hea'd coming in contact with the wall 'of the head 10 Vwill be formed with al socket.v 14 toV concavity 8 of thesleeve 5 will serve immediately to center the head s`o that all portions o the cushion 19 would be vequally compressed.`

If desired, the .stud 13 may be formed dif 4rectly upon the neck 14; of the retaining head 16 as indicated by the numeral 13'in Fig. 5 of the drawing in which event the receive the said stud. In either event it will be readily understood that a wrench may be applied to the squared portion of the head 101' feint-he purpose of removing the head, so that anew head may .be fitted into place, or so that the parts may be disassembled after the sleeve 5 is unthreaded from the threaded portion/.1L of the head 1.

In the form of the invention shown in' Fig. 4 of the drawing,.the sleeve 5 is provided at its outer end with an inwardly projecting annular flange 21 which serves the same purpose as the shoulder 7 and the inner face' of the head proper, which in this figure is indicated by the numeral 22, is flat as is also the outer end of the said sleeve.

Having thus described the invention what is claimed as new is 1. In a hammer, a body having a sleeve, a head having a shank provided with a retaining head slidably fitted in the sleeve, and cushioning means arranged within the sleeve at opposite sides of the retaining head.

2. In a hammer, a body having spaced abutments, a head having a shank provided with .an enlargement working 'between the abutments, and cushioning means arranged between each of the abutments and the said lenlar ement.

3. a hamnzer, a body having a sleeve formed at its opter end with a coneavity and interiorly with a shoulder, a cushioning .member arranged within the sleeve, a head having a convex side partly received within the ,concavit 4of the sleeve and having a shank-exten ing .from its said side and provided With a retaining head slidably fitting within the sleeve between fthe cushioning member and the said shoulder.

4. In a hammer, a' body having a sleeve extendirfg' therefrom, a cushioning member arranged within the sleeve, the sleeve being Vprovided interiorly with planeV wall portions, a retaining head having flattened sides,.the said heacl being slidably fitted between the plane wall portions of the-sleeve and resting against the cushioning member, and a drivinghead having threaded connection with the retaining head. I

5. In a hammer, a body having a sleeve extending therefrom, a cushioning member arran ed within the sleeve, the sleeve being provi ed interiorly with plane wall portions, a retaining head having {lat-tened sides, the said head being slidably fitted between the plane wall portions of thesleeve and resting against the cushioning member, the sleeve being formed interiorly with a shoulder opposing that side of the retaining head opposite the side which bears against the cushioning member, and a cushioning element arranged between the said shoulder and the adjacent side of the retaining head.

6. In a hammer', a body having a thread ed stud, a sleevethreaded at one end on'to the stud, a cushioning member arranged Within the sleeve v'and resting against the end of the stud, the sleeve being formed interiorly with a shoulder, a driving head having ashank provided at its inner end with a retaining head slidably iitt-ed within the sleeve and resting 'at one side against the cushioning member, and a cushioning washer arranged upon the said shank and fitting between the `shoulder and the ad jacent side of the said retaining head.

In testimony whereof I aiiix my signature in presence of two witnesses.

EDGAR 0. I-IUBBARD. [n s] Witnesses:

SALLIE M. Hussain), OvnR'roN C. HUBBARD.

lllfi 

